21 stud Flathead

Hi guy's any chance of seeing whats out there for 21 stud flatheads??
I am wanting to know if I should dress my 33 coupes engine or just save my pennys and buy a later 24 stud or even turn key straight out of H&H??
I have seen some Myres bits and love those.
please pm me if you have something for sale that might interest me.
Cheers

 

Mill your heads. Cam it, 2x2, and motor. Although you can not do wrong with a h&h flattie. Can you??

 

Im not too sure???? this is why Im asking

 

I have a 21 stud engine that I re built, runs sweet and looks cool with Canadian alloy heads. if you want a Flathead to get the available parts to make it keep up with modern traffic its a 49 on 8ba. thats why I have one in my roadster. All flatheads look cool and I love them all. Cost wise value for dollar 8ba